feat(client): ignore rule in .lodge

backend/cmd/lodge/main.go

@@ -169,7 +169,10 @@ func showStatus(ctx context.Context, c *client.Client, dir string, asJSON bool)
 		fmt.Printf("%s\nkey %s, branch %s, revision %d\n\nrules:\n", report.Root, report.Key, report.Branch, report.Revision)
 		for _, rule := range report.Rules {
 			kind := "branch"
-			if rule.Shared {
+			switch {
+			case rule.Ignore:
+				kind = "ignore"
+			case rule.Shared:
 				kind = "shared"
 			}
 			fmt.Printf("  %s %s\n", kind, rule.Path)

backend/internal/client/daemon.go

@@ -112,8 +112,8 @@ func (t tree) relevant(root, name string) bool {
 		return false
 	}
 	rel = filepath.ToSlash(rel)
-	return slices.ContainsFunc(t.rules, func(rule Rule) bool {
-		return within(rel, rule.Path) || within(rule.Path, rel)
+	return !t.rules.ignored(rel) && slices.ContainsFunc(t.rules, func(rule Rule) bool {
+		return !rule.Ignore && (within(rel, rule.Path) || within(rule.Path, rel))
 	})
 }
 
@@ -178,14 +178,15 @@ func (d *daemon) watch(root string) {
 	}
 	rules := LoadRules(repo.Root)
 	dirs := map[string]bool{repo.GitDir: true}
-	for _, rule := range rules {
+	for _, rule := range rules.synced() {
 		target := filepath.Join(repo.Root, filepath.FromSlash(rule.Path))
 		dirs[nearestDir(filepath.Dir(target), repo.Root)] = true
 		_ = filepath.WalkDir(target, func(path string, entry fs.DirEntry, err error) error {
 			if err != nil || !entry.IsDir() {
 				return nil
 			}
-			if entry.Name() == ".git" {
+			rel, _ := filepath.Rel(repo.Root, path)
+			if entry.Name() == ".git" || rules.ignored(filepath.ToSlash(rel)) {
 				return filepath.SkipDir
 			}
 			dirs[path] = true

backend/internal/client/daemon_test.go

@@ -55,6 +55,35 @@ func TestDaemonWatchesOnlyRulePaths(t *testing.T) {
 	}
 }
 
+func TestDaemonSkipsIgnoredPaths(t *testing.T) {
+	m, _ := setup(t)
+	watcher, err := fsnotify.NewWatcher()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() { watcher.Close() })
+	d := &daemon{client: m.client, watcher: watcher, owners: map[string]string{}, trees: map[string]tree{}}
+	write(t, m.root, RulesFile, "shared vault\nignore vault/.obsidian/workspace*.json\nignore .DS_Store\nignore vault/.trash\n")
+	write(t, m.root, "vault/.obsidian/app.json", "settings")
+	write(t, m.root, "vault/.trash/old.md", "old")
+	d.watch(m.root)
+	if _, watched := d.owners[filepath.Join(m.root, "vault/.trash")]; watched {
+		t.Fatal("ignored directory is watched")
+	}
+	for name, want := range map[string]bool{
+		"vault/note.md":                         true,
+		"vault/.obsidian/app.json":              true,
+		"vault/.obsidian/workspace.json":        false,
+		"vault/.obsidian/workspace-mobile.json": false,
+		"vault/.DS_Store":                       false,
+		"vault/.trash/old.md":                   false,
+	} {
+		if got := d.trees[m.root].relevant(m.root, filepath.Join(m.root, name)); got != want {
+			t.Errorf("relevant(%s) = %v, want %v", name, got, want)
+		}
+	}
+}
+
 func TestDaemonForgetsVanishedWorktrees(t *testing.T) {
 	c := &Client{DataDir: t.TempDir()}
 	if err := writeJSONFile(c.registryPath(), []string{filepath.Join(t.TempDir(), "gone")}); err != nil {

backend/internal/client/rules.go

@@ -5,6 +5,7 @@ import (
 	"os"
 	"path"
 	"path/filepath"
+	"slices"
 	"strings"
 
 	"lodge/internal/gitrepo"
@@ -15,6 +16,7 @@ const (
 	RulesFile     = ".lodge"
 	sharedKeyword = "shared"
 	branchKeyword = "branch"
+	ignoreKeyword = "ignore"
 	excludeBegin  = "# lodge begin"
 	excludeEnd    = "# lodge end"
 	DefaultRules  = "shared docs/agents\nshared CLAUDE.local.md\nbranch .agent\n"
@@ -23,6 +25,7 @@ const (
 type Rule struct {
 	Path   string `json:"path"`
 	Shared bool   `json:"shared"`
+	Ignore bool   `json:"ignore,omitempty"`
 }
 
 type Rules []Rule
@@ -31,12 +34,12 @@ func parseRules(text string) Rules {
 	rules := Rules{{Path: RulesFile, Shared: true}}
 	for _, line := range strings.Split(text, "\n") {
 		fields := strings.Fields(line)
-		if len(fields) != 2 || fields[0] != sharedKeyword && fields[0] != branchKeyword {
+		if len(fields) != 2 || !slices.Contains([]string{sharedKeyword, branchKeyword, ignoreKeyword}, fields[0]) {
 			continue
 		}
 		rulePath := path.Clean(strings.Trim(filepath.ToSlash(fields[1]), "/"))
 		if protocol.SafePath(rulePath) {
-			rules = append(rules, Rule{Path: rulePath, Shared: fields[0] == sharedKeyword})
+			rules = append(rules, Rule{Path: rulePath, Shared: fields[0] == sharedKeyword, Ignore: fields[0] == ignoreKeyword})
 		}
 	}
 	return rules
@@ -50,9 +53,14 @@ func LoadRules(root string) Rules {
 	return parseRules(string(data))
 }
 
+func (rules Rules) synced() Rules {
+	return slices.DeleteFunc(slices.Clone(rules), func(rule Rule) bool { return rule.Ignore })
+}
+
 func (rules Rules) paths() []string {
-	paths := make([]string, len(rules))
-	for i, rule := range rules {
+	synced := rules.synced()
+	paths := make([]string, len(synced))
+	for i, rule := range synced {
 		paths[i] = rule.Path
 	}
 	return paths
@@ -60,12 +68,29 @@ func (rules Rules) paths() []string {
 
 func (rules Rules) covers(file string, shared bool) bool {
 	best := Rule{}
-	for _, rule := range rules {
+	for _, rule := range rules.synced() {
 		if within(file, rule.Path) && len(rule.Path) > len(best.Path) {
 			best = rule
 		}
 	}
-	return best.Path != "" && best.Shared == shared
+	return best.Path != "" && best.Shared == shared && !rules.ignored(file)
+}
+
+func (rules Rules) ignored(file string) bool {
+	return file != RulesFile && slices.ContainsFunc(rules, func(rule Rule) bool { return rule.Ignore && rule.matches(file) })
+}
+
+func (rule Rule) matches(file string) bool {
+	for name := file; name != "." && name != "/"; name = path.Dir(name) {
+		target := name
+		if !strings.Contains(rule.Path, "/") {
+			target = path.Base(name)
+		}
+		if matched, _ := path.Match(rule.Path, target); matched {
+			return true
+		}
+	}
+	return false
 }
 
 func within(path, dir string) bool {

backend/internal/client/skill.md

@@ -15,7 +15,7 @@ Run `lodge status` inside the repository to see the rules in effect. The default
 - `.agent/` holds what belongs to the current branch: the plan for the feature, what was tried, why something was reverted. It is swapped on `git checkout` together with the branch.
 - `CLAUDE.local.md` is shared across branches.
 
-The rules live in `.lodge` at the repository root, one per line, as `shared <path>` or `branch <path>`. Paths are relative to the root, no globs. The file itself is synced too.
+The rules live in `.lodge` at the repository root, one per line, as `shared <path>`, `branch <path>` or `ignore <pattern>`. Paths are relative to the root. `ignore` keeps matching files local to each machine, for editor state and similar noise: the pattern is a glob over the whole path, or over any single name when it has no `/`, as in `ignore vault/.obsidian/workspace*.json` or `ignore .DS_Store`. The file itself is synced too.
 
 ## Rules of conduct
 

backend/internal/client/sync.go

@@ -114,20 +114,20 @@ func (c *Client) Sync(ctx context.Context, dir string, online bool) (Result, err
 
 func (c *Client) scan(repo *gitrepo.Repo, rules Rules) diskFiles {
 	found := diskFiles{shared: protocol.Manifest{}, branch: protocol.Manifest{}, tracked: repo.Tracked(rules.paths())}
-	for _, rule := range rules {
+	for _, rule := range rules.synced() {
 		start := filepath.Join(repo.Root, filepath.FromSlash(rule.Path))
 		_ = filepath.WalkDir(start, func(full string, entry fs.DirEntry, err error) error {
 			if err != nil {
 				return nil
 			}
-			if entry.IsDir() && entry.Name() == ".git" {
+			rel, _ := filepath.Rel(repo.Root, full)
+			rel = filepath.ToSlash(rel)
+			if entry.IsDir() && (entry.Name() == ".git" || rules.ignored(rel)) {
 				return filepath.SkipDir
 			}
 			if !entry.Type().IsRegular() || strings.HasSuffix(full, tempSuffix) {
 				return nil
 			}
-			rel, _ := filepath.Rel(repo.Root, full)
-			rel = filepath.ToSlash(rel)
 			if found.tracked[rel] || !rules.covers(rel, rule.Shared) {
 				return nil
 			}
@@ -257,7 +257,9 @@ func (c *Client) pass(ctx context.Context, repo *gitrepo.Repo, st *worktreeState
 			}
 			continue
 		}
-		relevant := protocol.SafePath
+		relevant := func(path string) bool {
+			return protocol.SafePath(path) && !rules.ignored(path)
+		}
 		if active[space] != nil {
 			relevant = func(path string) bool {
 				return protocol.SafePath(path) && rules.covers(path, space == protocol.SharedSpace) && !found.tracked[path]

backend/internal/client/sync_test.go

@@ -207,6 +207,72 @@ func TestRulesFileTravelsAndHostileServerPathsAreIgnored(t *testing.T) {
 	}
 }
 
+func TestIgnoredFilesNeverTravel(t *testing.T) {
+	mac, dell := setup(t)
+	rules := "shared vault\nignore vault/.obsidian/workspace*.json\nignore .DS_Store\nignore vault/cache\n"
+	write(t, mac.root, RulesFile, rules)
+	write(t, mac.root, "vault/note.md", "note")
+	write(t, mac.root, "vault/.obsidian/app.json", "settings")
+	write(t, mac.root, "vault/.obsidian/workspace.json", "mac layout")
+	write(t, mac.root, "vault/.obsidian/workspace-mobile.json", "mac mobile")
+	write(t, mac.root, "vault/deep/.DS_Store", "finder")
+	write(t, mac.root, "vault/cache/index.bin", "cache")
+	if res := mac.sync(); res.Pushed != 3 {
+		t.Fatalf("pushed %d files, want the rules, the note and app.json", res.Pushed)
+	}
+
+	write(t, dell.root, "vault/.obsidian/workspace.json", "dell layout")
+	dell.sync()
+	dell.expect("vault/note.md", "note")
+	dell.expect("vault/.obsidian/app.json", "settings")
+	dell.expect("vault/.obsidian/workspace.json", "dell layout")
+	dell.expect("vault/.obsidian/workspace-mobile.json", "")
+	dell.expect("vault/deep/.DS_Store", "")
+	dell.expect("vault/cache/index.bin", "")
+
+	hash, _ := mac.client.cacheBlob([]byte("pushed by an old client"))
+	if err := mac.client.uploadBlob(context.Background(), hash); err != nil {
+		t.Fatal(err)
+	}
+	push := protocol.Push{Changes: []protocol.Change{{Space: protocol.SharedSpace, Path: "vault/.obsidian/workspace.json", Hash: hash}}}
+	if err := mac.client.call(context.Background(), http.MethodPost, "/api/repos/"+repoKey(t, mac)+"/revisions", push, nil); err != nil {
+		t.Fatal(err)
+	}
+	mac.sync()
+	dell.sync()
+	mac.expect("vault/.obsidian/workspace.json", "mac layout")
+	dell.expect("vault/.obsidian/workspace.json", "dell layout")
+
+	exclude, _ := os.ReadFile(filepath.Join(dell.root, ".git/info/exclude"))
+	if strings.Contains(string(exclude), "workspace") || strings.Contains(string(exclude), "DS_Store") {
+		t.Fatalf("ignore rules leaked into exclude:\n%s", exclude)
+	}
+}
+
+func TestIgnoreRuleMatching(t *testing.T) {
+	rules := parseRules("shared vault\nbranch .agent\nignore vault/.obsidian/workspace*.json\nignore .DS_Store\nignore *.tmp\nignore .lodge\n")
+	for file, want := range map[string]bool{
+		"vault/note.md":                         true,
+		"vault/.obsidian/workspace.json":        false,
+		"vault/.obsidian/workspace-mobile.json": false,
+		"vault/.obsidian/workspaces.json":       false,
+		"vault/.obsidian/app.json":              true,
+		"vault/sub/.obsidian/workspace.json":    true,
+		"vault/.DS_Store":                       false,
+		"vault/a/b/.DS_Store":                   false,
+		"vault/.DS_Store/inside":                false,
+		"vault/draft.tmp":                       false,
+		RulesFile:                               true,
+	} {
+		if got := rules.covers(file, true); got != want {
+			t.Errorf("covers(%s) = %v, want %v", file, got, want)
+		}
+	}
+	if rules.covers(".agent/.DS_Store", false) || !rules.covers(".agent/plan.md", false) {
+		t.Error("ignore rules must apply to branch paths too")
+	}
+}
+
 func TestDeletingRepositoryOnServerKeepsFilesOnMachines(t *testing.T) {
 	mac, _ := setup(t)
 	write(t, mac.root, "docs/agents/plan.md", "v1")